Nippers adapted to bend at right angle and to flat the ends of metal wires.



PATENTED EBB. 14,1905 I E. G. GHRISTIANS-EN. NIPPBRS ADAPTED TO BEND AT RIGHT ANGLE AND TO PLAT THE ENDS 0E METAL WIRES. APPLICATION FILED 0013.20, 1904.

p Inventur: EB. ljhristicmsen.

Atturnsy UN TED STATES Patented February 14, 1905.

PATENT OFFICE.

EDUARD GREYSEL CHRISTIANSEN, OF DRAMMEN, NORWAY.

NIPPERS ADAPTED TO BEND AT RIGHT ANGLE AND TO FLAT THE ENDS OF METAL WIRES.

SPECIFICATION forming part of LettersPatent N0. 782,546, dated February 14, 1905. Application filed October 20,1904.- Serial No. 229,250.

To all whmn it may concern:

Be it known that I, EDUARD GREYSEL CHRIS- TIANSEN, dentist, a citizen of the Kingdom of Norway, and a resident of Borsen, Dramrnen, Norway, have invented certain new and useful Improvements in Nippers Adapted to Bend at Right Angle and to Flat the End of Metal Wires, of which the following is a specification. l

The object of my invention is to provide a pair of nippers adapted to bend at right angle and to fiat the end of metal wires by a single operation. Such a pair of nippers may preferably be used by dentists when artificial teeth furnished with pins shall be made and which pins are shaped as mentioned above.

My invention is illustrated in the accompanying drawings, in which Figure 1 is an elevation and a plan of a wire which is shaped for the purpose mentioned. Fig. 2 is a side elevation of the nippers, the jaws of which are shown separated. Figs. 3

and 4 are sideelevations of the two jaw parts.

Fig. 5 is a side elevation of the upper part of the nippers, the jaws of which are pressed together. Figs. 6, 7 and 8 are sections along the lines a b and c d, Figs. 3 and 4E, drawn to an enlarged scale and illustrating three oper ating positions.

The end 2 of the metal wire 1 shall first be bent at right angle and then made flat, as shown in Fig. 1. For this purpose one jaw part, 3, of the nippers is provided with a blade 4, projecting from one side of said part so that the blade when the jaws are pressed together passes over the side of the other jaw part, 5, Fig. 5. 'The blade has at its outer edge a notch 6 adapted to receive the metal wire 1, Fig. 6, the inner side face of the blade being inclined, 'as shown at 7 Fig. 6.

The nippers are operated as follows: The metal wire 1 is inserted in the notch 6, Fig. 6, so that its outer end 2, which shall be bent, projects a suitable distance between the jaws, whereafter these latter are forced together. The part 10 on the jaw 5 hereby first will meet with the metal wire, Fig. 6, then bend the same at a right angle, and immediately thereafter the bent end 2 will be gradually compressed, Fig. 7, as the distance between the blade 4 and the active portion 10 on account of the inclined face 7 is successively reduced when the jaws are forced together. In Fig. 8 the jaws are shown completely compressed. Here the whole end 2 has been pressed flat, whereby it is increased in width, as shown in Fig. 1. It is seen that the whole work is made during a single operation-by only forcing the jaws together.

When the nippers shall be used for bending and fiatting pins for artificial teeth, one of the pins must remain unactuated when the other one is shaped. For this purpose the one jaw part, 5, of the nippersis provided with notches 8 and 9 at both sides of that portion 10 which causes the shaping. When one of the pins is shaped, the other one will find a place in one of these notches 8' or 9, and it therefore will not be acted upon when the jaws are forced together.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A pair of nippers adapted to bend at right angle and to fiat the end of metal wires, and comprising two jaws, one of which is provided with a portion projecting to the side and passing over the side of the other jaw part, which portion has a notch to receive the metal wire and an inclined inner face, the distance of which from the acting portion of the other jaw side is gradually decreased, when the jaws are forced together, whereby the wire first will be bent and then made flat during a single operation.

2. A pair of nippers adapted to bend at right angle and to flat the end of metal wires, and comprising two jaws, one of which 3 is provided with a side blade 4, having at its outer edge anotch .6 to receive the metal wire and being so located, that the blade, when the jaws are forced together, passes over the side of the other jaw,5, whereby the inner face 7 of the blade 4 is inclined in such a manner, that the distance between said face 7 and the side of the jaw 5 is gradually decreased when the jaws are forced together.

3. A pair of nippers adapted to bend at right angle and to flat the end of metal wires, and comprising two jaws, one of which 3 is provided with a side blade 4:, having at its outer edge a notch 6 to receive the metal wire and being so located, that the blade, when the jaws are forced together, passes over the side of the other jaw 5, which latter is provided with notches 8 and 9 at both sides of its active portion 10, whereby the inner face 7 of the blade & is inclined in such a manner, that the distance between said face 7 and the side IQ of the jaw 5 is gradually decreased, when the jaws are forced together, all for the purpose of making the nippers suitable especially to shape the pins for artificial teeth.

In testimony whereof I have signed my name to this specification in the presence of two sub- I 5 scribing witnesses.

EDUARD GREYSEL CHRISTIANSEN. Witnesses:

AXEL LAHN, RICHARD LOKKE. 

